You can make decent C-size copies by scanning twice on a B-size
scanner and stitching together digitally.
Doesn't solve the taping problem, but it's quicker and cheaper than
the drive to Office Depot.
Since most rare schematics are hardly ever used again, I just throw them
away
and print/tape again should I ever have the need.
What I need is a way to scan microfiche so I can get rid of that
bulky fiche reader I'll probably never use again.